边磁等离激元谐振器的静电分裂
Electrostatic splitting of an Edge Magnetoplasmon Resonator
- Laboratoire de Physique de l’Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité（巴黎高等师范学院物理实验室，ENS，巴黎文理研究大学，法国国家科学研究中心，索邦大学，巴黎西岱大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文研究嵌入边磁等离激元谐振器的量子点接触的效应，结合直流与射频测量证实多种量子霍尔态特征，通过静电栅控确定相关参数，提出与实验吻合的几何模型。
AI中文摘要：
边磁等离激元谐振器已被提出作为一种强大工具，通过将量子点接触引入经射频辐射探测的孤立量子霍尔系统来探测任意子。本文研究嵌入边磁等离激元谐振器内的量子点接触的效应，以及其极化对传播磁等离激元模式的影响。结合直流与射频测量，我们明确证实射频传输信号中存在整数（ν=1和2）及分数量子霍尔态（ν=4/3和2/3）的特征。利用静电栅控，我们确定了基于AlGaAs/GaAs的二维电子气的静电边特征参数，提取了腔周长随量子点接触栅极电压的依赖关系，并完整表征了该系统中边磁等离激元的传播路径。最后，我们提出了一个与实验结果吻合良好的几何模型。
英文摘要：
Edge-magnetoplasmon resonators have been proposed as a powerful tool to detect anyons by introducing a quantum point contact into an isolated quantum Hall system probed via radiofrequency radiation. In this paper, we study the effect of a quantum point contact embedded within an edge-magnetoplasmon resonator and how its polarization influences the propagating magnetoplasmonic mode. Combining dc and rf measurements, we unambiguously evidence the signature of both integer ($ν= 1$ and $2$) and fractional quantum Hall states ($ν= 4/3$ and $2/3$) within the radiofrequency transmission signal. Using electrostatic gating, we determine the physical parameters characterizing the electrostatic edge of an AlGaAs/GaAs based two-dimensional electron gas. We extract the dependence of the cavity perimeter with the gate voltage of the quantum point contact and fully characterize the path followed by edge magnetoplasmons in this system. Finally, we provide a geometric model in good agreement with experimental results.
